Centuries ago, when men were foolish and practiced the demonic magics, it was common to invoke lesser demons and subdue them in order
to gain their power. Fooled by the Imps' small stature, sorcerers underestimated their powers and often summoned them to serve as
familiars. Once lulled into trusting these clever and conniving demons, the master would find his will subjugated by that of
his "servant," who would then vivisect him and create numerous homunculi from the pieces. In time, these homunculi would
grow into other Imps. Aware that its size is a liability in battle, an Imp uses magic to teleport and attack an opponent
at range, from a fortified tower position, or even while mounted on the backs of large beasts.

Tips and Other Additional Information
Demon Imps Teleport (but do not Heal when Teleporting) and have a Fire based ranged attack.

Revived demon imps (from the Necromancer's spell revive) don't attack from fortified positions or from the back of large beasts.

Demon Imps can hop onto the backs of Siege Beasts or into Towers to cast Inferno. If you kill a Tower with a Demon Imp in it, the
Demon Imp will be killed as well. However, if you kill a Siege Beast, the Demon Imp will Teleport away and still survive.